GB1157770A - Improvements in Thermostatic Devices - Google Patents
Improvements in Thermostatic DevicesInfo
- Publication number
- GB1157770A GB1157770A GB17007/68A GB1700768A GB1157770A GB 1157770 A GB1157770 A GB 1157770A GB 17007/68 A GB17007/68 A GB 17007/68A GB 1700768 A GB1700768 A GB 1700768A GB 1157770 A GB1157770 A GB 1157770A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valves
- rod
- valve
- diaphragm
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 210000002105 tongue Anatomy 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/01—Control of temperature without auxiliary power
- G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
- G05D23/125—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid the sensing element being placed outside a regulating fluid flow
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Temperature-Responsive Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Earth Drilling (AREA)
Abstract
1,157,770. Valves. J. PIEMONTESI. 9 April, 1968 [17 April, 1967], No. 17007/68. Heading F2V. [Also in Division G1] A temperature responsive actuator comprises a closed chamber 28 formed by a casing 27 and containing a volatile liquid, one wall of the chamber being formed by a flexible diaphragm 29, a push rod 17 for actuating a valve in a housing 1, engaging a central portion of the diaphragm 29 by means of a conical headed piston 38, the diaphragm being supported against excessive distortion by the provision of a ring of closely adjacent supporting elements 43 bearing at opposite ends on the piston 38 and on a rim formed on a member 37 fixed to the easing 27, the elements 43 co-operating to allow flexing of the diaphragm whilst forming a substantially continuous supporting surface for the diaphragm. The elements 43 may be separate or joined by flexible tongues. The push-rod 17 engages a rod 8 which slides in a cover 6 on the housing 1, the rod 8 actuating a valve member 12 having a rubber lining 13 co-operating with a valve seat 5. A spring 14 serves to retain the valve member 12 in engagement with the end of the rod 8. The valve seat 5 comprises eight radial furrows or serrations disposed in the shape of a star round the valve inlet 2. Thus, the edge of the seat which contacts the lining 13 is in the shape of a sinuous curve round the inlet. Alternatively, the valve seat could be square, rectangular or cruciform in shape. A base 15 is secured to the cover 6 by a ring 16 and this has three projecting horns 15b with hooks 15c which engage with a collar 34 on the casing 27, so that the casing may be a snap fit on the base 15. The push-rod 17 has three radial arms 19 supporting a ring 21 which abuts one end of a spring 22, the other end of which rests on a plate 23 whose periphery engages screwthreads 20 in a rotatable control knob 24, the plate 23 being prevented from rotating by engagement with the horns 19b. The tension in the spring 22 and thus the operating temperature of the valve may be adjusted by rotating the knob 24, the knob being held in place by the action of the spring 22 forcing it against a stop plate 25 on the base 15. The valve seat 5 comprises eight radial furrows or serrations (51), Fig. 7 (not shown), in the shape of a star round the inlet bore. 1,157,782. Hydraulic transmissions. ORENSTEIN KOPPEL UND LUBECKER MASCHINENBAUA.G. 23 June, 1967 [5 July, 1966], No. 29140/67. Heading F2D. [Also in Division B7] A tracked excavator having its tracks driven by hydraulic motors 21, 22 and its soil-working devices operated by hydraulic cylinders 7-10, comprises an hydraulic pump 1 connected in sequence to cylinder control valves 3-6 and to motor control valves 12, and a flow divider 15 which in use supplies the motors 21, 22 and is fed by bleed 23, the valves 3-6, 12, 13 being such that when they are all set at neutral, the pump output line 2 communicates with the sump 16, but in all other control positions the line 2 is blocked. Thus, actuation of either or both the motor valves 12, 13 blocks the pipe 14 and all the pump output is divided by the divider 15 between the valves 12, 13 which either supply the motors 21, 22 or return the oil to the sump lines 19, 20, according to whether they have been operated or not. The valves 12, 13 may be 6- or 8-way valves. The divider 15 comprises two positive displacement hydraulic motors of like volume, mechanically coupled together.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH539467A CH473348A (en) | 1967-04-17 | 1967-04-17 | Thermostatic valve comprising a movable actuator, the position of which is controlled by a deformable waterproof membrane closing a pressurized chamber |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1157770A true GB1157770A (en) | 1969-07-09 |
Family
ID=4292825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17007/68A Expired GB1157770A (en) | 1967-04-17 | 1968-04-09 | Improvements in Thermostatic Devices |
Country Status (9)
Country | Link |
---|---|
US (1) | US3469450A (en) |
AT (1) | AT280716B (en) |
BE (1) | BE713437A (en) |
CH (1) | CH473348A (en) |
DE (1) | DE1750127A1 (en) |
ES (1) | ES352597A1 (en) |
FR (1) | FR1557499A (en) |
GB (1) | GB1157770A (en) |
NL (1) | NL6805303A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53104429U (en) * | 1977-01-28 | 1978-08-22 | ||
GB2129556A (en) * | 1982-10-01 | 1984-05-16 | Danfoss As | Thermostatic actuator unit for a valve |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3215568C2 (en) * | 1982-04-26 | 1986-07-03 | Danfoss A/S, Nordborg | Attachment for thermostatic valves |
FR2979288B1 (en) * | 2011-08-25 | 2013-08-23 | Valeo Systemes Thermiques | DEVICE FOR MONITORING A FLOW OF REFRIGERANT FLUID AND CIRCUIT INCORPORATING SUCH A DEVICE |
KR102364133B1 (en) * | 2016-08-05 | 2022-02-18 | 나부테스코 가부시키가이샤 | Hydraulic control valve and hydraulic control circuit |
CN109812585B (en) * | 2019-02-22 | 2020-12-08 | 六安联众工业自动化技术有限公司 | Anti-blocking sewage pipeline valve |
CN111688471A (en) * | 2019-03-11 | 2020-09-22 | 舍弗勒技术股份两合公司 | Thermal management module for vehicle and working method thereof |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1305603A (en) * | 1919-06-03 | William hodgson | ||
US655361A (en) * | 1899-10-05 | 1900-08-07 | Foster Engineering Company | Diaphragm for pressure-regulating valves. |
US721324A (en) * | 1902-05-02 | 1903-02-24 | William H Rayner | Diaphragm for pumps, air-brakes, compressors, or the like. |
US1555592A (en) * | 1924-11-01 | 1925-09-29 | James J Lawler | Automatic heat-controlling regulator |
US2387793A (en) * | 1940-08-16 | 1945-10-30 | Honeywell Regulator Co | Valve |
US3067944A (en) * | 1959-11-23 | 1962-12-11 | Meier Bernhard | Temperature controlled radiator valve |
-
1967
- 1967-04-17 CH CH539467A patent/CH473348A/en not_active IP Right Cessation
-
1968
- 1968-03-28 FR FR1557499D patent/FR1557499A/fr not_active Expired
- 1968-03-30 ES ES352597A patent/ES352597A1/en not_active Expired
- 1968-04-02 DE DE19681750127 patent/DE1750127A1/en active Pending
- 1968-04-04 AT AT329868A patent/AT280716B/en not_active IP Right Cessation
- 1968-04-09 GB GB17007/68A patent/GB1157770A/en not_active Expired
- 1968-04-09 BE BE713437D patent/BE713437A/xx unknown
- 1968-04-15 US US721342A patent/US3469450A/en not_active Expired - Lifetime
- 1968-04-16 NL NL6805303A patent/NL6805303A/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53104429U (en) * | 1977-01-28 | 1978-08-22 | ||
GB2129556A (en) * | 1982-10-01 | 1984-05-16 | Danfoss As | Thermostatic actuator unit for a valve |
Also Published As
Publication number | Publication date |
---|---|
US3469450A (en) | 1969-09-30 |
ES352597A1 (en) | 1969-07-16 |
FR1557499A (en) | 1969-02-14 |
CH473348A (en) | 1969-05-31 |
NL6805303A (en) | 1968-10-18 |
BE713437A (en) | 1968-08-16 |
DE1750127A1 (en) | 1971-01-14 |
AT280716B (en) | 1970-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |